Unleash Physics Excitement With Phet Moving Man Simulation Part 2 Quiz

If the graph of velocity is linear and increasing, that is the velocity of the object is increasing by the same amount ever second, then it has a positive acceleration

• True

• False

Because the increase in the velocity is by the same amount every second, that is constant, then the acceleration of the moving man is constant. 

• True

• False

An object accelerates when it's velocity changes, that is speeds up or slows down, or if the direction of the object is moving changes.  If the red slider is a measurement of the "moving mans" velocity.  Because the slider changes it's location then the moving man is acceleration.

• True

• False

Step one:      Reset all of the man's values to zero. Step Two:      Using the position slider, set the man to stand near the tree.  Give him a velocity of 0 m/s and an acceleration of 0.5 m/s². Step Three:  Close all of the graphs Step Four:    Click Play to start the man in motion until he hits the wall, then hit pause to stop recording. Step Five:      Use the playback feature to answer these questions. Question:  What happens to the blue (position) slider.

• It stays in the same place

• It moves to the right

• It moves to the left

• It moves to the right then to the left.

Step One.      Click on the the tab "chart" at the top of the window Step Two.      Reset all of the "moving mans" to zero.  Step Three.   Use the position slider to move the man near the center (0.0 m) Step Four.     Give him a velocity of 0 m/s and an acceleration of .5 m/s/s  Step Five.      Start the man in motion until he hits the wall, then stop recording.  Looking at only the velocity verses time graph, does the graph appears linear? is it increasing or decreasing? 

• Linear and increasing

• Linear and decreasing

• Non-linear and increasing

• Non-linear and decreasing

How does the slider "behave"? 

• It starts off moving fast then slows down

• It starts off slow then moves faster

• It moves at the same pace the entire time

• It doesn't move

Which of the following best describes the acceleration verses time graph. 

• The acceleration stays the same

• The acceleration starts out positive then becomes negative

• The acceleration starts out negative then becomes positive

• The acceleration starts out positive then becomes more positive

• The acceleration starts out negative then becomes more negative

How does the speed of the red slider "behave".

• It slow then gets fast

• Its fast then becomes slow

• It moves at the same the pace the entire time

• It remains stationary

What happens to the red (Velocity) slider?

• Stays the same

• It moves to the right

• It moves to the left

• It moves to right then to the left

Predict what the position verses time graph would look like in this simulation.

Predict what the velocity verse time graph would like for this simulation

Predict what the acceleration verse time graph would look like for this simulation.

What happens to the velocity-time graph of the Moving Man if he accelerates uniformly?

• It becomes a horizontal line.

• It slopes upward.

• It slopes downward.

• It forms a loop.

If the Moving Man starts from rest, what does the position-time graph look like during constant acceleration?

• A horizontal line.

• An upward-sloping line.

• A downward-sloping line.

• An inverted U-shaped curve.